Apparatus for burning of glassware



Aug. 7, 1945. y H. R. SCHUTZ 2,381,467

' APPARATUS FOR BURNING OFF GLASSWARE Filed Aug. '13, 1942' 4 sheets-sheet 1 Au'g. 7,1945. H. R. sCHU-rz -APARATUS FOR BURNING OFF GLASSWARE Filed Aug. 13, 1942 b 4 Sheets-Sheet 2 Aug. 7, 1945, l H. R. scHUTz 2,381,461

APPARATUS FOR BURNING OFF GLASSWARE Filed Aug. 15, 1942 4 sheets-sheet s /zwld Schal@ :Aug: 7 1945- H. R. @Huf-zx 2,381,467

lIARTUS FOR BURNING OFF GLASSWARE FiledrAug. 15, 1942 Y 4 sheets-sheet 4 Patented Aug. 7,l 1945 APPARATUS FR BURNING OFF GLASSWARE 4 Harold B.. Schutz, Toledo, Ohio, .assignon byv assignments, to Owens-Illinois Glass Company, Toledo, Ohio, a corporation of Ohio A `'Application August 13, 1942, Serial No. 454,636

1'2 claims. (cl. 492-50) The present invention relates to improvements in apparatus for burning oil' glassware vand more particularly is. concerned with the formation of a .bead or safedge" at the rim of tumblers and like articles of tableware.

'I'he principal object of my invention is the provision of a novel apparatus, through the use of which, the size of bead produced at the rim of a tumbler or similar vessel may be regulably controlled. 4

Another object of my invention is the provision of means individual to the burn-ofi units making up a complete machine, whereby each may be adjusted independently of the others to pro-v duce a specific and individual size of bead.

A further object is the provision of novel and easily operable apparatus for regulably controlling the size of bead produced.

Other objects will be in part apparent part pointed out hereinafter.

In the drawings:

Fig. 1 is a side elevational view with parts in section illustrating the embodiment of my inven- 'tionA in an otherwise conventional rotary bur olf machine.

Fig. .2 is a vertical transverse sectional view of and vin a conventional type of burn-off machine insofar as the main frame, carrier, and article holding chucks are concerned. These conventional parts include a base I5, a stationary central column I6 rising therefrom and supporting at its upper through a pinion I9, ring gear 20 and vertical drive shaft 2i, the latter extending upwardly through the stationary central column I6 and secured at its upper endto the rotary carriage one of the burn-olf units disclosing in some detail, the -construction of the adjusting mechanism and showing the relationship between the tumbler and burner immediately after severance of the moil from the tumbler. I

Fig. 3 is a fragmentary sectional view .of the unit shown in Fig. 2, but disclosing the burner elevated slightly, preparatoryv to produbing a bead on the rim of the tumbler. y

Fig. 4 is a fragmentary detail sectional view of the burner and a portion of the tumbler during the formation of a bead on the latter.

Fig. 5 is a sectional plan view taken substantially along the line 5 5 of Fig. 2.-

Fig. 6 is a sectional plan .view taken substantially along the line 8-6 of Fig. 2.

Fig. '7 is a fragmentary side elevational view of one of three circumferentially spaced-inclinedl cam faces and cooperating rollers which adjust the position of the' burner.

Fig. 8 is a bottom plan view of one of the burn-off units showing an adjustable stop which limits vertical adjustment of the'burner.

Fig. 9 is. a diagrammatic plan view, of a burn- I type burner 29 which is mounted upon a bracket` I1. A stationary cam 22 ,attached to the upper portion of the central column. I6, operates through a. bell crank lever 23 and link 24 (Fig. 1)l to impart vertical reciprocating movement t0 a chuck 25 which is intended to support a tumbler vT or similar article of glassware in position for the moll severing operation. A moil pan 26 is arranged below the chuck to receive the moil 21 after it has .been completelysevered from the tumbler.

The-burn-ofl' units I8 (Figs. 1 and 9) are ar- 28 of conventional or any preferred type and from this table, are removed and transferred to an annealing leer (not shown). f

Each of the burn-off units IB comprises a ring- 30, said'bracket being generally cylindrical and .provided with a central vertical opening 3| for a purpose which will be apparent presently. This bracket (Figs. 1 and 2) is attached to the rotary carriage I1 by means of a. vertical arm 32 and bolts 33, the latter extending through slots in said arm and thereby providing for vertical ad- Justment to and securing 'of the bracket at any desired elevation.- An adjusting screw 34 extending vertically alongside of the arm 32, and connected at one end to the carriage I1 and at its 4other end to said bracket 30,Y provides effective means for raising or lowering the bracket 30 and therewith, the burner 29. A cylindrical burner support 35 (Flgs.'2, 3,` and 5) is mounted in the opening 3i of the bracket 30 forv limited vertical movement therein and is held against rotation in said bracket by means of pins 36.

This cylindrical support (Fig. 2.) has alilange 31 at its upper end extending radially outwardly and secured in a. corner recess 38 of the bracket 30, and said flange in turn is secured to the burner 29 through the medium of a ring 39, flange 40 on said burner, vand screws 4l. Screws 4|a secure the ring 39 to the flange 31 on said support. 'Ihis specific structure is shown in Fig.

2 wherein there is also 'included a depending skirt 42 forming a part of the flange 40 on the burner, said skirt enclosing and having sliding contact with the upperportion of the bracket 30.

Mechanisms individual to the burn-off units are mounted each in the lower part of the bracket 30 and operable to move the burner 29 and cylindrical support 35 therefor, vertically relative to the tumbler chuck 25 asr and for the purpose pointedout heretofore. To this end the lower portion of the cylindrical housing or bracket 30 is increased in diameter and provided with a bottom 'closure plate 43 which is attached to the bracket by means of screws 44.

The support adjusting mechanism comprises an annular series of cams 45 (Figs. 2, 6, and '1) which assume the form of a series of identically inclined circumferentially extending grooves 415,`

"series of retaining-balls the latter riding in mating annular grooves 52 provided in said elevating ring and a collar 53. This collar (Figs. 2 and 3) is secured between the-aforementioncd closure or cover plate 43 for the lower end of the bracket and a shoulder 54 substantially directly opposite the cam rollers 49.

ing pins, exerts sufficient pressure thereon to cause circumferential movement of the elevating ring a distance determined by the setting of the aforementioned abutment 51. The point at which such operation takes place is variable due to the mounting of the fingers upon a bracket 6I which in turn is slidable upon a 1horizontal carrier 62 and lockable thereon at any point by means of bolts or screws 62a, the latter being of arcuate form and extending in a direction circumferentially of the machine. A second finger 63 is positioned within the circle of burn-off units a short distance beyond the peg table 28 for engagement with the other operating pin of each burn-off unit for the purpose of reversing the movement of the elevating ring and thereby returning the burner 29 to its original or lowermost position. Springs illD and 63b have sufy iicient tension to hold the fingers and S3 reand lowering mechanism for the chuck, and is so placed with respect to the burner 29 that an intensely hot flame is applied to the glass at the juncture of the tumbler and moil This flame softens and ultimately completely severs the glass For the purpose of imparting oscillatory motion v side of said rin'g, a pair of substantially circumferentially spaced operating pins 55, 55a which depend from the ring and project through a pair -of arcuate circumferentially extending slots 56 in said bottom closure p-late 43. The pin 55 which functions as part of the burner raising mechanism is spaced radially outward from the other pin 55'al with respect'to the central column I6. These pins, as will be apparent presently, are intended to be engaged one at a. time for moving the elevating ring in one direction and then reversing such motion in order to reciprocate the burner 29.' The degree of circumferential movement of the pins and therefore thelelevating ring, is limited by means of an adjustable abutment 51 (Fig. 8) which assumes the form of a substantially U-shaped element straddling one of the slots 56 and forming a false end wall therefor.

at a given point in its cycle of operations and effect raising of the corresponding burner. This nger,'upon engagement with one of the operatat this juncture, and the moil 21 drops into the moil pan 26. In order that a satisfactory bead, or safedge, may be formed at the severed edge of the tumbler, the flame continues to play upon this edge, thereby causing the glass to roll into the shape of a continuous bead. In many instances and particularly where the-tumbler is to be used initially.as a food container and therefore sealed with an aluminum cap, or the like, a comparatively heavy bead is desired and in fact is absolutely essential to successful use with a cap. The size of the bead is increased by the step of moving the burner upwardly relative to the tumbler so that the flame plays not only upon the severed edge, but additionally impinges upon the glass in close proximity to said edge. This operation results in a heavier bead than 'is obtained by the usual method and has proved to produce a bead of uniform dimensions entirely free from humps and other irregular surface formations.

Modifications may be resorted to within the spirit and scope of the appended claims.

I claim:

1. Apparatus of the character described, comprising an annular series of burn-off units each including a holder for supporting a glass article and a mcil integral therewith in superposed relationship, a ring-type burner positioned below and in axial alignmentwith the holder, means for rotating the units about a vertical axis, mechanisms individual to the units for moving the burners vertically relative to .the holder and devices common to all of said units for actuating the mechanisms at predetermined points in each revolution thereof about said axis, each of said mechanisms including a cylindrical support for the burner, said support being nonrotative about its own axis, a ring encircling the cylindrical y support and mounted for oscillation thereabout,

imparts axial movement to thesupport and ment of said ring imparts axial movement to the support and burner.

2, Apparatus of the character described, comprising an annular series of burn-olf units each including a holder for supporting aglass article and a moil integral therewith in superposed relationship, a ring-.type burner positioned below and l in axial alignment with the holder',r means for rotating the uni-ts about a vertical axis, mechanisms individual to the units for moving the burners vertically relative to the holder and devices common to all of said units for actuating the mechanisms at predetermined points in each revolution thereof about said axis, each of said mechanism including a cylindrical support for thev burner, said support being nonrotativt': 4about- 3. Apparatus of the character described, com- .prising anannular series of burn-off .units each including a holder for supporting a glass article and a moil integral therewith in superposed relationship, a. ring-type burner positioned below and in axial alignment with the holder, means for rotating the units about a vertical axis, mechansms individual to the units for moving the burners vertically relative to Ithe holder and devices common to all of .said units for 'actuating .the mechanisms at predetermined points in each revolution thereof about said axis, each of said mechanisms including a cylindrical support for the burner, said support being nonrotative abou-t its own axis, a ring encircling the cylindrical support and mounted for oscillation thereabout, means holding said ring against vertical moveburner.

6. Apparatus of the character described, comi prising a holder 'for supporting a glass article l and moil integral Itherewith in superposed relationshlp, a ring-type burner positioned below and in axial alignment with the. holder, a bracket having a vertical opening .'therein, a burner support slidingly and non-rotatively mounted in said opening, a, ring supported in the bracket and encircling the' lower part of said suppor-t for oscillation thereabout, means securing said ring against axial movement in said bracket, a circumferentially extending cam ilxed .to and encircling the lower portion of the burner support and cam rollers carried by said ring and engaging the cam.

7. Apparatus of the character descn'bed, comprising a holder for supporting a glass article and moil integral therewith in superposed relationship, a ring-type burner positioned below and inaxial alignment with the holder, a bracket hav' ing a vertical opening therein, a burner support slidingly and non-rotatively mounted in said opening, a ring supported in the bracket and encircling the lower part of said support for oscillation thereabout, means securing said ring against axial movement in said bracket, an annular series of l crcumi'erentially extending cams mounted upon the exterior of the burner support and cam rollers individual to said cams and -carried by the ring cooperating with the cams.

8. Apparatus ot the character described, comprising a holder for supporting aglass article ment and Cam and 101161 cnnectin between s'aid ring and support whereby circumferential Amovement of said ring imparts axial movement to the support and burner, saidcam and roller connection including an annular series of cams mounted` upon and externally of vsaid cylindrical support and yrollers individual to and cooperating with the cams mounted upon said ring.

4. Apparatus of the character described, comprising a holder Afor supporting a glass article and moil integral Itherewith in superposed relationship, a ring-type burner spaced from and in axial 'alignment with the holder, a support for the burner, said support being nonrotative about ythe axis of the holder, means for moving the burner support axially including a ring encircling said support near its lower end and mounted lfor oscillation thereabout, means securing 'the ring against axial movement, and cam and roller connection between said 'ring and burner support.

5. Apparatus of the character described. comprising a' holder for supporting a glass article and n moil integral therewith inl superposed relation- .whereby circumferentialgnovement of the latter whereby circumferential movement of the latter imparts axial movement to the support and burner, a pair of operating pins depending from said ring at circumferentially spaced points and providing means wherebyoscillatory motion may be imparted to said ring.

9. Apparatus of the character described, comprising aholder for supporting a glass article and moil integral therewith in superposed relationshipI a ring-type burner positioned below and in axial alignment with the holder, a bracket having a vertical opening therein, a burner support slidingly and non-rotatively mounted in said opening, a ring vsupported in the bracket and encircling the lower part of said support for oscillation thereabout, means securing said ring against axial movement in said bracket, cam and roller connection between said support and ring whereby circumferential movement of the latter imparts axial movement to the support and burner, a pair of operating pins depending from the ring at circumierentiallyspaced points, providing means 'whereby oscillatory motion may be imparted to said ring, and means for limiting the possible extent of circumferential movement of said ring.

1 10. Apparatus o1'` the character described, comprising a holder for supporting a glass article land moil integral therewith in superposed relationship, a ring-type burner positioned below and in axial alignment with the holder, a bracket having a vertical opening therein. a burner support slidingly and non-rotatively mounted in said opening, a ring supported in the bracket and encircling the lower part oi said support for oscillation thereabout, means securing said ring against axial movement in said bracket, cam and roller connection between said 'support and ring whereby circumferential movement of the latter imparts axial Amovement to the support `and burner, a pair of operating pins depending from the ring at circumferentially spaced points, providing means whereby oscillatory motion may be imparted to said ring, and means for limiting the possible extent of circumferential movement oi' said ring, said last named means including anadjustable abutment carried by the bracket and positioned at one end of the path of` movement oi one of said pins.

11. Apparatus of the character described, com- `prising a holder for supporting a glass article and said cams and carried by the ring cooperating withthe cams, aplate positioned beneath and cooperating with the bracket in enclosing the ring and cams, said plate having a pair of circumferentially spaced arcuate slots therein, and a pair of operating pins depending from the ring and projecting through said arcuate slots.

12. Apparatus of the character described, comprising a holder for supporting a glass article and moil integral therewith in superposed relationship, a, ring-type burner positioned below and in axial alignment with the holder, a bracket having a vertical opening therein, a burner support slidingly and non-rotatively. mounted in said opening, a ring supported in the bracket and,

encircling the lower part of said support for oscillation thereabout, means securing said ring against axial movement in said bracket, an. annular series of cams mounted upon the exterior of the burner support, cam rollers individual to said cams and carried by the ring cooperating with the cams, a-plate positioned beneath and cooperating with the bracket in enclosing the ring and cams, said plate having a pair of circumferentially spaced arcuate slots therein, a pair of operating pins depending from the ring and projecting through said arcuate slots, and an adjustabale abutment arranged at one end of one Vof said slots whereby to regulably control the 30 degree of oscillation of said ring.

HAROLD SCHUTZ. 

